FPGA soft-core of the Saab Viggen's 1963 airborne computer
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HN · launched Mar 20, 2026 · 22 upvotes (top 24%) · 0 views
Niche: software and system emulators · 114 launches, 3 in the last 7 days ▼ -70% · Explore this niche →
Category and tags
- Horizontal
- Hardware & robotics
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 114 launches in software and system emulators →
Could you build this?
No Recreating a 1960s avionics computer (Saab CK37) on an FPGA requires rare aerospace reverse-engineering, hardware description languages (VHDL/Verilog), and historical microarchitecture expertise.
What it would actually take: The project requires FPGA synthesis toolchains (Vivado, Quartus, or open-source Yosys), writing cycle-accurate synthesizable Verilog/VHDL modeling bit-serial arithmetic and archaic magnetic-core memory architectures, and decoding historical Swedish military documentation. Expertise in digital logic design, vintage computer architecture, timing constraint optimization, and hardware verification is mandatory.
Discussion
8 comments analyzed.
Competitors mentioned: MarineTraffic, VesselFinder
Concerns raised: MEMS vs mechanical gyro noise profile differences, Sensor jitter and drift in modern sensors vs military version, Susceptibility to bit flips from reduced component count, Cosmic ray exposure and SEU effects at altitude, Frontend is messy in main system
Feature requests: More user-friendly frontend and onboarding, Handover documentation for Saab for further development
Competitors
Other products that read as similar to this one : 1865 launches clear the similarity bar, closest 8 shown.
Attention rank: #446 of 1866 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 140 days after the earliest competitor.
- unixpc · github · 2026-11-06 · 27 upvotes · similarity 0.63
- MNIST-Neural-Network-On-FPGA · github · 2026-10-13 · 17 upvotes · similarity 0.60
- computer_architecture_a_quantitative_approach · github · 2026-11-06 · 42 upvotes · similarity 0.59
- Silver · ph · 2026-11-04 · 1 upvotes · similarity 0.58
- Reverse-engineered the FPGA bitstream using Claude Code · hn · 2026-04-06 · 6 upvotes · similarity 0.58
- Surtr Defense Systems · yc · 2026-05-13 · 8 upvotes · similarity 0.57
- compressed-cache-fpga · github · 2026-10-26 · 14 upvotes · similarity 0.55
- chromatix · github · 2026-09-29 · 9 upvotes · similarity 0.55
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